In the past I used acad extensively, I still use it occasionally but it has been a while since I worked on a large scale project. Anyhow I am experiencing a wierd problem I have never seen or heard of and cant find a solution.
Once a layer is set to either yellow or magenta I canot change the layer color again. I am setting these colors using the LPM dialog. it doesent matter if its an old drawing or a brandnew one. I have tried starting from various templates everything has the same problem.
I can change the objects color manually in properties but thats horible practice and a pian.
I can change between all other colors no problem but once it goes to yellow or magenta its locked there.
what on earth would do this?